AP BIOLOGY

Detailed explanation-1: -What is glycolysis? Glycolysis is a series of reactions that extract energy from glucose by splitting it into two three-carbon molecules called pyruvates.

Detailed explanation-2: -In this first step, a molecule of glucose, which has six carbon atoms, is split into two three-carbon molecules. The three-carbon molecule is called pyruvate.

Detailed explanation-3: -This 6-carbon compound is then split by an enzyme, called aldolase, into two 3-carbon moieties, dihydroxyacetone phosphate and glyceraldehyde-3-phosphate.

Detailed explanation-4: -The breakdown of glucose, a six-carbon molecule, into a three-carbon molecule called pyruvate takes place in the cytoplasm. The break up of three-carbon pyruvate molecule to give three molecules of carbon-dioxide takes place in the mitochondria.